Across
- 2. Planets farther from the sun have longer orbital periods (Write First, Second, or Third)
- 4. An oval shape
- 6. A measure of how round an orbit is
- 7. The distance between an object (such as a planet) and the object it is orbiting (ex. the sun)
- 8. planets cover equal areas in equal time (Write First, Second, or Third)
Down
- 1. The time it takes one object in space to fully orbit another
- 3. The speed of something in a given direction
- 5. Planets orbit the sun in a shape called an ellipse (Write First, Second, or Third)
- 9. The curved path of one object around another